Wheel



Feb. l0, 1931. M TRESCHOW 1,792,049

Fel). 10, k1931. M TRESCHOW 1,792,049

WHEEL Filed Nov. 2, 1929 2Sheets-Sheet 2 mu/Lm vwantoz @MM www C @uw f* Patented F eb. 1Q, 1931 Mronnn. ranscnower aannam-n, New

renin, Assreivon To F. L. sivIIn'rH & Co., o1?

new renza if. .a c-aarenar'ron or YNrn/v zinssatz v WHEEL l Applicatien filed November This invention relates to wheels, particularly gear wheels, which are so supported as to be capable of slight movement in an axial direction as for the ,purpose of permitting the teeth of a herring-bone gear, for example, to

adapt themselves to the teeth of a coacting gear. In the construction of'such vwheels the rim is commonly secured to the edge of a disc or membrane, usually of somewhat resilient metal, which is mounted upon a supporting shaft. In order that lightness in weight and necessary strength may be secured the rimV is usually formed with internal Webs or` time the use of a supporting disc or mem# brane which has a diameter greater than the diameter of the circular opening within the flange. In accordance with the invention the internal flange is slotted radially at one point. rIhe rim is reinforced at that point by a rela-V tively short reinforcing web which is offset inwardly from the flange vand overlaps the vslot of the flange, and the disc is slotted at its edge so that the disc can be introduced within the iiange by a screw motion. It will be understood that the disc, as it will be referred to hereinafter, may be a single disc or a multiple disc, made up of several separate sheets, as conditions may require. It will alsoV su be understood that suitable provisions are made for securing the rim to the disc and for securing the disc to its supporting shaft.

The invention will be 'more fully explained hereinafter with reference to the accompanying drawings in which it is illustrated, and in which:

Figure 1 is a view in diametrical section of a gear wheel vwhich embodies the invention, the supporting shaft being shown in elevation. Y

Figure 2 is a view of the rim of the gear rasa. serial No'. 404,276.

wheel as seen from the righthand in Figure 1. Figuren?) is av view in elevation of the disc Ashown in Figure 1.

Figure tis view in elevation, as seen from the righthand in Figure 1, showing the rim and the disc at one stage of assembly.

Figures 5, 6, 7 andS are detail views illustrating successive stages in theassembly of the rim and disc. i

In the embodiment of the inventionV illusvtrated in the drawings the: wheel rim a is shown as provided with duplex toothed rings A, which may be regardedias parts of the rim. The rim is also shown asA relatively light in Weight and as strengthened by inter- 1 nal webs or flanges c, 01 and 02, these flanges being relatively thin, for lightness, but relatively deep in order to give the' rim the necessary strength. Theweb or flange c1 is shown V'as adapted for connection with the disc, as hereinafter explained, and the web or flange c2 is shown as continuous, having no slot. -The flange c, however, is shown as provided rat one point with a slot c3 whichV is extended to the full depth Vofthe flange has a substantial but not exeessivewidth, as representedin Figure Q.. The flange c2 might be slotted in order to permit the introduction of a disc, if so desired,`but ordinarily it will be suicient Vto provide one slotted flange. Gifset inwardly from the flange o is a reinforcingweb CZ, which is of substantially the same depth as the flange c 'and is of sufficient length to overlap the 4slot 03,'as shown in Figure 2, and so com pensate for the weakening of the flange by Vthe slot. The web Z is oset from the fiange fiiciently to facilitate the assembly of the parts, as hereinafter described, and the inner faces of the flange, adjacent the slot, and theV outer faces of the reinforcing'web are chamfered, as shown in Figures 5, 6, 7 and ail 8, also to facilitate the assembly of the parts.

secure the disc to the flange f of the supporting shaft f1 and it is also provided, near its periphery, with a series of holes e5 to receive bolts e by which the disc is secured 5 to the flange c1 of the Wheel rim, this flange being suitably formed to receive the disc.

In assembling the disc and the rim one lip of the disc, adjacent the slit e1, is deflected and, as shown in Figures I and 5, is introduced into the slot e3 and between the flange c `and the reinforcing web d. The disc is then rotated until it assumes the position shown in Figure 6. Then one lip of the disc is sprung over the end of the reinforcing web CZ, as shown in Figure 7, and the disc is then rotated as before until it passes Within the reinforcing web CZ, after which it is secured to the flange o1 of the Wheel and to the flange f of the shaft, as previously described.

It will be understood that When the disc is made up of multiple sheets, as indicated in Figure l, the severalsheets may be rotated relatively to each other so that the slits el and openings e2 Will be distributed circumferentially so as to secure uniform action.

It will be understood that various changes can be made to suit conditions of use and .a0 that, except as pointed out in the accompanying claims, the invention is not restricted to the particular construction shown and described herein.

I claim as my invention:

l. In a Wheel, a rim having an internal flange slotted at one point and a reinforcing web offset from the flange, a flexible disc having a diameter greater than the diameter of the opening Within the flange and slitted at one point, a supporting shaft, and means to secure the disc to the rim and to the supporting shaft.

2. In a Wheel, a rim having an internal flange slotted at one point and a reinforcing web offset from the flange, a flexible disc having a diameter greater than the diameter of the opening Within the flange and slitted at its edge at one point and having an opening With Which the slit communicates, a supporting shaft, and means to secure the disc to the rim and to the supporting shaft.

3. In a Wheel, a rim having internal flanges one of Which is slotted at one point and al einforcing Web offset from the slotted flange, a flexible disc having a diameter greater than the diameter of the opening Within -the flange and slit at one point, a supporting shaft, and means to secure the disc to one of the flanges of the rim and to the supporting shaft.

This specification signed this 1st day ofv November A.. D. 1929. l

MICHAEL TRESCHVV. 

